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ON should be used
Christmas EVE is considered to be a specific time.
At Christmas (at Christmas) is usually followed by the time, as in at Christmas, which means (during Christmas).
On Christmas is usually followed by Eve, which means Christmas Eve, which is Christmas Eve, on the night of December 24.
Note that at christmas = on Christmas Day.
on Christmas eve = on Christmas Eve.
During the Christmas holidays = During the Christmas holidays.
around christmas time = on or around Christmas Day.
The rules are the day, date, year, month, day, day of the week plus morning, noon and evening; Or an eve like this one uses on.
Example: on October 1, 1949 on October 1, 1949.
On February the Thirteenth l893.
on May the first May 1.
on the first 1.
on the sixteenth No. 16.
on the second of january or on january the second on January 2.
on a summer evening.
On Boxing Day (the day after Christmas).
on new year's day on New Year's Day.
on my birthday.
But in the Christmas holidays; in the eighteenth century; in ancient times; in earlier times; in modern times าป
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Christmas night. It is a specific day to choose A
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Because Christmas Eve is equivalent to a certain night, and on Sunday evening, the same kind of A is chosen
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I choose AOn Christmas EVE is a fixed usage. For example, on the eve of the election, it means on the eve of the election.
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Article 1(1) The advantages and disadvantages of a large population have been a topic of discussion among economists. Some people think that the ** of good land is limited. To feed a large population, secondary land had to be cultivated, and good land was intensively cultivated.
As a result, the output per person becomes smaller, which means that the average income is lower than when the population is smaller. Other economists believe that a large population would provide more areas of specialization and would allow for the development of facilities such as ports, roads and railways that would not have been built without a large demand.
One of the difficulties in implementing a global birth control programme is that official attitudes towards population growth vary from country to country due to different levels of industrial development and the production of food and raw materials. In developing countries, where a hugely large population is constantly oppressing on limited food, space, and natural resources, the first thing to consider is to control the birth rate first, no matter what the outcome. In highly industrialized societies, the problem can be more complex.
A lower birth rate can lead to unemployment, as there is a corresponding decrease in market demand for manufactured goods.
2) When the pressure on housing decreases, housing prices also decrease, and the construction industry is weakened. In the face of these problems, developed countries** may be inclined to see a slow-growing population rather than no or negative growth.
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I translated it myself, I hope it can help you.
In the middle school context, there is no solution to this problem, which is determined by the nature of odd and even numbers. Because the numbers given in this problem are all odd numbers, and the sum of three odd numbers is still an odd number, and it is impossible to get an even number of 30, so there is no solution to this problem. >>>More
1. better take
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